saint requier



(No Model.) 2 snets-lqt '1. H. P. SAINT REQUIRE.

BOLTING REEL.

No. 324,595. Patented Aug. 18, 1885.

12m llllll N. Firms phwumn n her. Washington. a. c.

(No Model.)

2 Sheets-Sheet 2.

H. F. SAINT REQUIER.

BOLTING REEL- N0. 324,595. Patented Aug. 18, 1885.-

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linrrnn STArns PATENT UFFMIFQ HENRY F. SAINT REQUIER, OF ASNHJRES,ASSIGNOR TO LA SOGIETE ANONYME POUR LES PROOEDFS BREVETES DE FARIN ERIESAINT REQUIER, OF PARIS, FRANCE.

BOLTlNG-REEL.

Application filed July 2. 1884'.

QlflfiCiFlQATIOIT forming part of Letters Patent No. 324,595, datedAugust 1.8, 1885.

(No model.) Patented in France July 21, 1582, No. 150,233 in BelgiumJuly 22, 1X82, No. 58,543;

in England July 28, 1852, No. 3,593; in Austria October 13, 1882, No.26.931; in Germany March 2, 1884, No. 29,053; in Italy March 4, 1854,No. 16,533, and in Spain June 9, 1884, No. 5,668.

To 0051? whom it may concern.-

Be it known that I, HENRY FERDINAND SAINT REQUIER, a citizen of theRepublic of France, and residing in Asnieres, France, engineer, haveinvented an Improved Beltinglteel to be Used in the Treatment'of Grainand Flour, of which the following is a specification.

The object of this invention is to provide an apparatus which will admitof being used by a slight modification, either sifting or assortinggrain and bolting meal.

In the accompanying drawings, Figure 1 shows in longitudinal section theimproved apparatus contracted in length for the con venience ofillustration, and Fig. 2 is a crosssection of the same. Fig. 3represents a front view and longitudinal section, drawn to an enlargedscale, of a portion of a metallic hoop for the cylinder-cover. Fig. 4 isa sectional View, and Fig. 5 a front View, of a portion of the adjoiningedges of the cylinder-cover; and Fig. 6 is a diagram illustrating themethod ot lacing the cover of the cylinder.

It consists, mainly, of a skeleton c' lindcrof iron mounted horizontallyupon hollow trunnions and covered with wire-gauze or silk, according tothe use to which the apparatus is to be applied.

The grain or meal to be treated is delivered to the cylinder through oneof the 1101- low trunnions from a fixed hopper or supply tube, A, andthe residue from the assorted or sifted grain or meal is delivered to afixed dis charge hopper or tube, G, connected with the hollow trunnionat the opposite end of the ma chine.

B is a transverse girder, of cast-iron, which supports the feeding endof the cylinder, and to it the hopper A is secured. D is a similargirder, which supports the delivery end of the cylinder and also thedischarge hopper or tube 0. These girders carry plummer-blocks E, inwhich the hollow trunnions of the cylinders are free to turn.

F and G are circular end plates, of cast-iron, made fast to or cast inone with their respective trunnions, and connected together by parallelbars of angle-iron H, which form the skeleton periphery of the cylinder.

I are bars of iron coiled helically from end to end of the cylinder, andcompleting with the parallel bars H, the skeleton cylindrical framing.

J are rings formed of angle-iron, and sun rounding thecylinder for thepurpose of stiffening the cylinder and preventing the flexure of theparallel bars I-I. These rings bear upon antifriction pulleys K, mountedin fixed boxes below the cylinder. The cylinder is covered by wire-gauzeor silk L,and itis driven through a spur-wheel, M, keyed onto one of thetrunnions. The grain or meal is admitted to the cylinder by the aid ofan Archimedean screw, N, which rotates with the cylin ler, it beingsituated within a horizontal portion or continuation of the, fixeddelivery-tube A. A similar arrangement-is provided for facilitating thedischarge of the residuum of the assorted grain or sifted meal, anArchimedean screw, 0, attached to the delivery end, being situated inthe horizontal portion or continuation of the tube 0. r

The cylinder is fitted at its discharge end with radial blades P, forlifting the residuum of the operations and discharging the same into Ipieces are similarly fitted at their edges with strips of metal carryingstuds, as illustrated at Fig. 4:.

When these pieces are laid around the cylinder, they may be secured inplace and drawn to the desired tension by means of lacing-cords passedfrom side to side around the studs of the adjacent hoops and strips.This mode of lacing is shown in Figs. 4, 5, and 6.

The action of this apparatus is as follows:

. 5 Supposing the cylinder to be provided with a silk covering suitablefor bolting or sifting the fine flour from the meal, meal is deliveredto the cylinder by the Archimedean screw N, which rotates with therotation of the cylinder. The meal as it enters the rotating cylinderfalls to the bottom, and is retained in the cells formed in its innerperiphery by the intersection of the horizontal bars H with the helicalbars I. As the cylinder rotates on its axis these cells carry the mealtoward the top and discharge it in a shower upon the lower part of thecylinder and into the cells next in advance. By these means the meal isslowly traversed forward, and at the same time every atom is broughtinto contact with the covering of the cylinder without any tendency toslide forward in a mass over the covering. The absence also of a shaftextending through the cylinder leaves a free course for the fall- 25 ingmeal when emptied from the raised cells.

It will be understood that, by graduating the coarseness or fineness ofthe covering of the cylinder, the material under treatment will, withthe act of bolting or sifting, be separated according to the fineness orcoarseness of the granules or grains.

I claim 1. Arotary bolting-cylinder consisting ofopposite end frames,longitudinal angle-bars connecting the two helical bars, a covering, andouter"stiffening-rings, J, in combination with bearing-rollers on whichthe said rings are adapted to travel, substantially as set forth.

2. The combination of the rotary bolt having radial delivery-blades atthe outlet end, with the discharge-hopper O, projecting within the bolt,and having a feedscrew, O, to turn with the bolt, substantially asdescribed.

In testimony whereof I have signed my name to this specification in thepresence of two sub- 4 5 scribing witnesses.

H. F. SAINT REQUIER.

Witnesses:

Z. FLAMENT, ALFRED CORIN.

